Examples with SegmentInputStreamFactory io.pravega.client.segment.impl.SegmentInputStreamFactory used on opensource projects

Example 1 with SegmentInputStreamFactory

use of io.pravega.client.segment.impl.SegmentInputStreamFactory in project pravega by pravega.

the class SegmentIteratorTest method testTimeoutError.

@Test(timeout = 5000)
public void testTimeoutError() throws SegmentTruncatedException, EndOfSegmentException {
    Segment segment = new Segment("Scope", "Stream", 1);
    int endOffset = 10;
    SegmentInputStreamFactory factory = mock(SegmentInputStreamFactory.class);
    EventSegmentReader input = mock(EventSegmentReader.class);
    when(factory.createEventReaderForSegment(segment, 0, endOffset)).thenReturn(input);
    when(input.read()).thenReturn(null).thenReturn(stringSerializer.serialize("s"));
    @Cleanup SegmentIteratorImpl<String> iter = new SegmentIteratorImpl<>(factory, segment, stringSerializer, 0, endOffset);
    assertEquals("s", iter.next());
    verify(input, times(2)).read();
    when(input.read()).thenThrow(SegmentTruncatedException.class);
    assertThrows(TruncatedDataException.class, () -> iter.next());
}

Example 2 with SegmentInputStreamFactory

use of io.pravega.client.segment.impl.SegmentInputStreamFactory in project pravega by pravega.

the class RevisionedStreamClientTest method testTimeoutWithStreamIterator.

@Test
public void testTimeoutWithStreamIterator() throws Exception {
    String scope = "scope";
    String stream = "stream";
    // Setup Environment
    PravegaNodeUri endpoint = new PravegaNodeUri("localhost", SERVICE_PORT);
    JavaSerializer<String> serializer = new JavaSerializer<>();
    @Cleanup MockConnectionFactoryImpl connectionFactory = new MockConnectionFactoryImpl();
    @Cleanup MockController controller = new MockController(endpoint.getEndpoint(), endpoint.getPort(), connectionFactory, false);
    createScopeAndStream(scope, stream, controller);
    MockSegmentStreamFactory streamFactory = new MockSegmentStreamFactory();
    // Setup mock
    SegmentOutputStreamFactory outFactory = mock(SegmentOutputStreamFactory.class);
    SegmentOutputStream out = mock(SegmentOutputStream.class);
    Segment segment = new Segment(scope, stream, 0);
    when(outFactory.createOutputStreamForSegment(eq(segment), any(), any(), any(DelegationTokenProvider.class))).thenReturn(out);
    SegmentInputStreamFactory inFactory = mock(SegmentInputStreamFactory.class);
    EventSegmentReader in = mock(EventSegmentReader.class);
    when(inFactory.createEventReaderForSegment(eq(segment), anyInt())).thenReturn(in);
    when(in.read(anyLong())).thenReturn(null).thenReturn(serializer.serialize("testData"));
    SegmentMetadataClientFactory metaFactory = mock(SegmentMetadataClientFactory.class);
    SegmentMetadataClient metaClient = mock(SegmentMetadataClient.class);
    when(metaFactory.createSegmentMetadataClient(any(Segment.class), any(DelegationTokenProvider.class))).thenReturn(metaClient);
    when(metaClient.getSegmentInfo()).thenReturn(CompletableFuture.completedFuture(new SegmentInfo(segment, 0, 30, false, System.currentTimeMillis())));
    @Cleanup SynchronizerClientFactory clientFactory = new ClientFactoryImpl(scope, controller, connectionFactory, inFactory, streamFactory, streamFactory, metaFactory);
    @Cleanup RevisionedStreamClient<String> client = clientFactory.createRevisionedStreamClient(stream, serializer, SynchronizerConfig.builder().build());
    Iterator<Entry<Revision, String>> iterator = client.readFrom(new RevisionImpl(segment, 15, 1));
    assertTrue("True is expected since offset is less than end offset", iterator.hasNext());
    assertNotNull("Verify the entry is not null", iterator.next());
    verify(in, times(2)).read(anyLong());
}

Example 3 with SegmentInputStreamFactory

use of io.pravega.client.segment.impl.SegmentInputStreamFactory in project pravega by pravega.

the class EventStreamReaderTest method testSegmentSplit.

@Test(timeout = 10000)
public void testSegmentSplit() throws EndOfSegmentException, SegmentTruncatedException, SegmentSealedException, ReaderNotInReaderGroupException {
    AtomicLong clock = new AtomicLong();
    MockSegmentStreamFactory segmentStreamFactory = new MockSegmentStreamFactory();
    // Prep the mocks.
    ReaderGroupStateManager groupState = Mockito.mock(ReaderGroupStateManager.class);
    // Mock for the two SegmentInputStreams.
    Segment segment1 = Segment.fromScopedName("Foo/Bar/1");
    SegmentWithRange s1range = new SegmentWithRange(segment1, 0, 1);
    EventSegmentReader segmentInputStream1 = Mockito.mock(EventSegmentReader.class);
    Mockito.when(segmentInputStream1.isSegmentReady()).thenReturn(true);
    Mockito.when(segmentInputStream1.read(anyLong())).thenThrow(new EndOfSegmentException(EndOfSegmentException.ErrorType.END_OF_SEGMENT_REACHED));
    Mockito.when(segmentInputStream1.getSegmentId()).thenReturn(segment1);
    Segment segment2 = Segment.fromScopedName("Foo/Bar/2");
    SegmentWithRange s2range = new SegmentWithRange(segment2, 0, 0.5);
    EventSegmentReader segmentInputStream2 = Mockito.mock(EventSegmentReader.class);
    @Cleanup SegmentOutputStream stream2 = segmentStreamFactory.createOutputStreamForSegment(segment2, segmentSealedCallback, writerConfig, DelegationTokenProviderFactory.createWithEmptyToken());
    Mockito.when(segmentInputStream2.read(anyLong())).thenReturn(writeInt(stream2, 2));
    Mockito.when(segmentInputStream2.getSegmentId()).thenReturn(segment2);
    Segment segment3 = Segment.fromScopedName("Foo/Bar/3");
    SegmentWithRange s3range = new SegmentWithRange(segment3, 0.5, 1.0);
    EventSegmentReader segmentInputStream3 = Mockito.mock(EventSegmentReader.class);
    @Cleanup SegmentOutputStream stream3 = segmentStreamFactory.createOutputStreamForSegment(segment3, segmentSealedCallback, writerConfig, DelegationTokenProviderFactory.createWithEmptyToken());
    Mockito.when(segmentInputStream3.read(anyLong())).thenReturn(writeInt(stream3, 3));
    Mockito.when(segmentInputStream3.getSegmentId()).thenReturn(segment3);
    SegmentInputStreamFactory inputStreamFactory = Mockito.mock(SegmentInputStreamFactory.class);
    Mockito.when(inputStreamFactory.createEventReaderForSegment(eq(segment1), anyInt(), any(Semaphore.class), eq(Long.MAX_VALUE))).thenReturn(segmentInputStream1);
    Mockito.when(inputStreamFactory.createEventReaderForSegment(eq(segment2), anyInt(), any(Semaphore.class), eq(Long.MAX_VALUE))).thenReturn(segmentInputStream2);
    Mockito.when(inputStreamFactory.createEventReaderForSegment(eq(segment3), anyInt(), any(Semaphore.class), eq(Long.MAX_VALUE))).thenReturn(segmentInputStream3);
    Mockito.when(groupState.getEndOffsetForSegment(any())).thenReturn(Long.MAX_VALUE);
    @Cleanup EventStreamReaderImpl<byte[]> reader = new EventStreamReaderImpl<>(inputStreamFactory, segmentStreamFactory, new ByteArraySerializer(), groupState, new Orderer(), clock::get, ReaderConfig.builder().build(), createWatermarkReaders(), Mockito.mock(Controller.class));
    Mockito.when(groupState.acquireNewSegmentsIfNeeded(anyLong(), any())).thenReturn(ImmutableMap.of(s1range, 0L)).thenReturn(Collections.emptyMap());
    InOrder inOrder = Mockito.inOrder(segmentInputStream1, groupState);
    EventRead<byte[]> event = reader.readNextEvent(100L);
    assertNull(event.getEvent());
    event = reader.readNextEvent(100L);
    assertNull(event.getEvent());
    Mockito.when(groupState.getCheckpoint()).thenReturn("checkpoint").thenReturn(null);
    Mockito.when(groupState.acquireNewSegmentsIfNeeded(anyLong(), any())).thenReturn(ImmutableMap.of(s2range, 0L, s3range, 0L)).thenReturn(Collections.emptyMap());
    assertEquals("checkpoint", reader.readNextEvent(0).getCheckpointName());
    inOrder.verify(groupState).getCheckpoint();
    // Ensure groupstate is not updated before the checkpoint.
    inOrder.verify(groupState, Mockito.times(0)).handleEndOfSegment(s1range);
    event = reader.readNextEvent(0);
    assertFalse(event.isCheckpoint());
    // Now it is called.
    inOrder.verify(groupState, Mockito.times(1)).handleEndOfSegment(s1range);
    assertEquals(ImmutableList.of(segmentInputStream2, segmentInputStream3), reader.getReaders());
}

Example 4 with SegmentInputStreamFactory

use of io.pravega.client.segment.impl.SegmentInputStreamFactory in project pravega by pravega.

the class EventStreamReaderTest method testTruncatedSegmentDeleted.

/**
 * This test tests a scenario where a lagging reader's SegmentInputStream receives a SegmentTruncatedException and
 * when the reader tries to fetch the start offset of this segment the SegmentStore returns a NoSuchSegmentException.
 */
@Test
public void testTruncatedSegmentDeleted() throws Exception {
    AtomicLong clock = new AtomicLong();
    Segment segment = Segment.fromScopedName("Foo/Bar/0");
    SegmentWithRange rangedSegment = new SegmentWithRange(segment, 0, 1);
    // Setup mock.
    SegmentInputStreamFactory segInputStreamFactory = Mockito.mock(SegmentInputStreamFactory.class);
    SegmentMetadataClientFactory segmentMetadataClientFactory = Mockito.mock(SegmentMetadataClientFactory.class);
    SegmentMetadataClient metadataClient = Mockito.mock(SegmentMetadataClient.class);
    EventSegmentReader segmentInputStream = Mockito.mock(EventSegmentReader.class);
    Mockito.when(segmentMetadataClientFactory.createSegmentMetadataClient(any(Segment.class), any())).thenReturn(metadataClient);
    Mockito.when(segmentInputStream.getSegmentId()).thenReturn(segment);
    Mockito.when(segInputStreamFactory.createEventReaderForSegment(any(Segment.class), anyInt(), any(Semaphore.class), anyLong())).thenReturn(segmentInputStream);
    // Ensure segmentInputStream.read() returns SegmentTruncatedException.
    Mockito.when(segmentInputStream.isSegmentReady()).thenReturn(true);
    Mockito.when(segmentInputStream.read(anyLong())).thenThrow(SegmentTruncatedException.class);
    // Ensure SegmentInfo returns NoSuchSegmentException.
    Mockito.when(metadataClient.getSegmentInfo()).thenThrow(NoSuchSegmentException.class);
    Orderer orderer = new Orderer();
    ReaderGroupStateManager groupState = Mockito.mock(ReaderGroupStateManager.class);
    Mockito.when(groupState.getEndOffsetForSegment(any(Segment.class))).thenReturn(Long.MAX_VALUE);
    @Cleanup EventStreamReaderImpl<byte[]> reader = new EventStreamReaderImpl<>(segInputStreamFactory, segmentMetadataClientFactory, new ByteArraySerializer(), groupState, orderer, clock::get, ReaderConfig.builder().build(), createWatermarkReaders(), Mockito.mock(Controller.class));
    Mockito.when(groupState.acquireNewSegmentsIfNeeded(eq(0L), any())).thenReturn(ImmutableMap.of(rangedSegment, 0L)).thenReturn(Collections.emptyMap());
    InOrder inOrder = Mockito.inOrder(groupState, segmentInputStream);
    // Validate that TruncatedDataException is thrown.
    AssertExtensions.assertThrows(TruncatedDataException.class, () -> reader.readNextEvent(0));
    inOrder.verify(groupState).getCheckpoint();
    // Ensure this segment is closed.
    inOrder.verify(segmentInputStream, Mockito.times(1)).close();
    // Ensure groupstate is not updated before the checkpoint.
    inOrder.verify(groupState, Mockito.times(0)).handleEndOfSegment(rangedSegment);
    Mockito.when(groupState.getCheckpoint()).thenReturn("Foo").thenReturn(null);
    EventRead<byte[]> event = reader.readNextEvent(0);
    assertTrue(event.isCheckpoint());
    assertEquals("Foo", event.getCheckpointName());
    inOrder.verify(groupState).getCheckpoint();
    // Verify groupstate is not updated before the checkpoint, but is after.
    inOrder.verify(groupState, Mockito.times(0)).handleEndOfSegment(rangedSegment);
    event = reader.readNextEvent(0);
    assertFalse(event.isCheckpoint());
    assertNull(event.getEvent());
    // Now it is called.
    inOrder.verify(groupState).handleEndOfSegment(rangedSegment);
}

Example 5 with SegmentInputStreamFactory

use of io.pravega.client.segment.impl.SegmentInputStreamFactory in project pravega by pravega.

the class RevisionedStreamClientTest method testRetryOnTimeout.

@Test
public void testRetryOnTimeout() throws ConnectionFailedException {
    String scope = "scope";
    String stream = "stream";
    Segment segment = new Segment(scope, stream, 0L);
    // Setup Environment
    PravegaNodeUri endpoint = new PravegaNodeUri("localhost", SERVICE_PORT);
    // Setup Mocks
    JavaSerializer<String> serializer = new JavaSerializer<>();
    @Cleanup MockConnectionFactoryImpl connectionFactory = new MockConnectionFactoryImpl();
    @Cleanup MockController controller = new MockController(endpoint.getEndpoint(), endpoint.getPort(), connectionFactory, false);
    // Setup client connection.
    ClientConnection c = mock(ClientConnection.class);
    connectionFactory.provideConnection(endpoint, c);
    // Create Scope and Stream.
    createScopeAndStream(scope, stream, controller);
    // Create mock ClientFactory.
    SegmentInputStreamFactory segInputFactory = new SegmentInputStreamFactoryImpl(controller, connectionFactory);
    SegmentOutputStreamFactory segOutputFactory = mock(SegmentOutputStreamFactory.class);
    ConditionalOutputStreamFactory condOutputFactory = new ConditionalOutputStreamFactoryImpl(controller, connectionFactory);
    SegmentMetadataClientFactory segMetaFactory = mock(SegmentMetadataClientFactory.class);
    SegmentMetadataClient segMetaClient = mock(SegmentMetadataClient.class);
    when(segMetaFactory.createSegmentMetadataClient(eq(segment), any(DelegationTokenProvider.class))).thenReturn(segMetaClient);
    @Cleanup ClientFactoryImpl clientFactory = new ClientFactoryImpl(scope, controller, connectionFactory, segInputFactory, segOutputFactory, condOutputFactory, segMetaFactory);
    RevisionedStreamClientImpl<String> client = spy((RevisionedStreamClientImpl<String>) clientFactory.createRevisionedStreamClient(stream, serializer, SynchronizerConfig.builder().build()));
    // Override the readTimeout value for RevisionedClient to 1 second.
    doReturn(1000L).when(client).getReadTimeout();
    // Setup the SegmentMetadataClient mock.
    doReturn(CompletableFuture.completedFuture(new SegmentInfo(segment, 0L, 30L, false, 1L))).when(segMetaClient).getSegmentInfo();
    // Get the iterator from Revisioned Stream Client.
    Iterator<Entry<Revision, String>> iterator = client.readFrom(new RevisionImpl(segment, 15, 1));
    // since we are trying to read @ offset 15 and the writeOffset is 30L a true is returned for hasNext().
    assertTrue(iterator.hasNext());
    // Setup mock to validate a retry.
    doNothing().doAnswer(i -> {
        WireCommands.ReadSegment request = i.getArgument(0);
        ReplyProcessor rp = connectionFactory.getProcessor(endpoint);
        WireCommands.Event event = new WireCommands.Event(Unpooled.wrappedBuffer(serializer.serialize("A")));
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        event.writeFields(new DataOutputStream(bout));
        ByteBuf eventData = Unpooled.wrappedBuffer(bout.toByteArray());
        // Invoke Reply processor to simulate a successful read.
        rp.process(new WireCommands.SegmentRead(request.getSegment(), 15L, true, true, eventData, request.getRequestId()));
        return null;
    }).when(c).send(any(WireCommands.ReadSegment.class));
    Entry<Revision, String> r = iterator.next();
    assertEquals("A", r.getValue());
    // Verify retries have been performed.
    verify(c, times(3)).send(any(WireCommands.ReadSegment.class));
}